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Rev | Author | Line No. | Line |
---|---|---|---|
94 | mario79 | 1 | |
87 | mario79 | 2 | cd_current_pointer_of_input dd 0 |
3 | cd_current_pointer_of_input_2 dd 0 |
||
4 | cd_mem_location dd 0 |
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5 | cd_counter_block dd 0 |
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6 | endg |
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7 | |||
8 | |||
9 | |||
10 | |||
11 | |||
12 | |||
13 | cmp [cd_status],0 |
||
14 | je reserve_ok2 |
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15 | |||
16 | |||
17 | call change_task |
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18 | jmp reserve_hd1 |
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19 | |||
20 | |||
21 | |||
22 | |||
23 | mov eax,[0x3000] |
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24 | shl eax,5 |
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25 | mov eax,[eax+0x3000+4] |
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26 | mov [cd_status],eax |
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27 | pop eax |
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28 | sti |
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29 | ret |
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30 | |||
31 | |||
32 | |||
33 | |||
34 | ; |
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35 | ; fs_CdRead - LFN variant for reading CD disk |
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36 | ; |
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37 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
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38 | ; ebx pointer to 64-bit number = first wanted byte, 0+ |
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39 | ; may be ebx=0 - start from first byte |
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40 | ; ecx number of bytes to read, 0+ |
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41 | ; edx mem location to return data |
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42 | ; |
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43 | ; ret ebx = bytes read or 0xffffffff file not found |
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44 | ; eax = 0 ok read or other = errormsg |
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45 | ; |
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46 | ;-------------------------------------------------------------- |
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47 | fs_CdRead: |
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48 | push edi |
||
49 | cmp byte [esi], 0 |
||
50 | jnz @f |
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51 | .noaccess: |
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52 | pop edi |
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53 | .noaccess_2: |
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54 | or ebx, -1 |
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55 | mov eax, ERROR_ACCESS_DENIED |
||
56 | ret |
||
57 | |||
58 | |||
59 | pop eax edx ecx edi |
||
60 | jmp .noaccess_2 |
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61 | |||
62 | |||
63 | call cd_find_lfn |
||
64 | jnc .found |
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65 | pop edi |
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66 | cmp [DevErrorCode],0 |
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67 | jne .noaccess_2 |
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68 | or ebx, -1 |
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69 | mov eax, ERROR_FILE_NOT_FOUND |
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70 | ret |
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71 | |||
72 | |||
73 | mov edi,[cd_current_pointer_of_input] |
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74 | test byte [edi+25],10b ; do not allow read directories |
||
75 | jnz .noaccess |
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76 | test ebx, ebx |
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77 | jz .l1 |
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78 | cmp dword [ebx+4], 0 |
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79 | jz @f |
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80 | xor ebx, ebx |
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81 | .reteof: |
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82 | mov eax, 6 ; end of file |
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83 | pop edi |
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84 | ret |
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85 | @@: |
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86 | mov ebx, [ebx] |
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87 | .l1: |
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88 | push ecx edx |
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89 | push 0 |
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90 | mov eax, [edi+10] ; реальный размер файловой секции |
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91 | sub eax, ebx |
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92 | jb .eof |
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93 | cmp eax, ecx |
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94 | jae @f |
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95 | mov ecx, eax |
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96 | mov byte [esp], 6 |
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97 | @@: |
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98 | mov eax,[edi+2] |
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99 | mov [CDSectorAddress],eax |
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100 | ; now eax=cluster, ebx=position, ecx=count, edx=buffer for data |
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101 | .new_sector: |
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102 | test ecx, ecx |
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103 | jz .done |
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104 | sub ebx, 2048 |
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105 | jae .new_sector |
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106 | add ebx, 2048 |
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107 | jnz .incomplete_sector |
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108 | cmp ecx, 2048 |
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109 | jb .incomplete_sector |
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110 | ; we may read and memmove complete sector |
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111 | mov [CDDataBuf_pointer],edx |
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112 | call ReadCDWRetr ; читаем сектор файла |
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113 | cmp [DevErrorCode],0 |
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114 | jne .noaccess_3 |
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115 | inc dword [CDSectorAddress] |
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116 | add edx, 2048 |
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117 | sub ecx, 2048 |
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118 | jmp .new_sector |
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119 | .incomplete_sector: |
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120 | ; we must read and memmove incomplete sector |
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121 | mov [CDDataBuf_pointer],CDDataBuf |
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122 | call ReadCDWRetr ; читаем сектор файла |
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123 | cmp [DevErrorCode],0 |
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124 | jne .noaccess_3 |
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125 | inc dword [CDSectorAddress] |
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126 | mov eax,CDDataBuf |
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127 | add eax, ebx |
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128 | push ecx |
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129 | add ecx, ebx |
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130 | cmp ecx, 2048 |
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131 | jbe @f |
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132 | mov ecx, 2048 |
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133 | @@: |
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134 | sub ecx, ebx |
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135 | push edi esi ecx |
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136 | mov edi,edx |
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137 | mov esi,eax ;0x7000 ; CD data buffer |
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138 | cld |
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139 | rep movsb |
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140 | pop ecx esi edi |
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141 | add edx, ecx |
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142 | sub [esp], ecx |
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143 | pop ecx |
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144 | xor ebx, ebx |
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145 | jmp .new_sector |
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146 | |||
147 | |||
148 | mov ebx, edx |
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149 | pop eax edx ecx edi |
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150 | sub ebx, edx |
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151 | ret |
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152 | .eof: |
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153 | mov ebx, edx |
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154 | pop eax edx ecx |
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155 | sub ebx, edx |
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156 | jmp .reteof |
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157 | |||
158 | |||
159 | ; |
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160 | ; fs_CdReadFolder - LFN variant for reading CD disk folder |
||
161 | ; |
||
162 | ; esi points to filename /dir1/dir2/.../dirn/file,0 |
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163 | ; ebx pointer to structure 32-bit number = first wanted block, 0+ |
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164 | ; & flags (bitfields) |
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165 | ; flags: bit 0: 0=ANSI names, 1=UNICODE names |
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166 | ; ecx number of blocks to read, 0+ |
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167 | ; edx mem location to return data |
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168 | ; |
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169 | ; ret ebx = blocks read or 0xffffffff folder not found |
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170 | ; eax = 0 ok read or other = errormsg |
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171 | ; |
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172 | ;-------------------------------------------------------------- |
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173 | fs_CdReadFolder: |
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174 | push edi |
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175 | call cd_find_lfn |
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176 | jnc .found |
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177 | pop edi |
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178 | cmp [DevErrorCode],0 |
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179 | jne .noaccess_1 |
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180 | or ebx, -1 |
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181 | mov eax, ERROR_FILE_NOT_FOUND |
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182 | ret |
||
183 | .found: |
||
184 | mov edi,[cd_current_pointer_of_input] |
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185 | test byte [edi+25],10b ; do not allow read directories |
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186 | jnz .found_dir |
||
187 | pop edi |
||
188 | .noaccess_1: |
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189 | or ebx, -1 |
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190 | mov eax, ERROR_ACCESS_DENIED |
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191 | ret |
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192 | .found_dir: |
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193 | mov eax,[edi+2] ; eax=cluster |
||
194 | mov [CDSectorAddress],eax |
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195 | mov eax,[edi+10] ; размер директрории |
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196 | .doit: |
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197 | ; init header |
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198 | push eax ecx |
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199 | mov edi, edx |
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200 | mov ecx, 32/4 |
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201 | xor eax, eax |
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202 | rep stosd |
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203 | pop ecx eax |
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204 | mov byte [edx], 1 ; version |
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205 | mov [cd_mem_location],edx |
||
206 | add [cd_mem_location],32 |
||
207 | ; начинаем переброску БДВК в УСВК |
||
208 | ;.mainloop: |
||
209 | mov [cd_counter_block],dword 0 |
||
210 | dec dword [CDSectorAddress] |
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211 | push ecx |
||
212 | .read_to_buffer: |
||
213 | inc dword [CDSectorAddress] |
||
214 | mov [CDDataBuf_pointer],CDDataBuf |
||
215 | call ReadCDWRetr ; читаем сектор директории |
||
216 | cmp [DevErrorCode],0 |
||
217 | jne .noaccess_1 |
||
218 | call .get_names_from_buffer |
||
219 | sub eax,2048 |
||
220 | ; директория закончилась? |
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221 | cmp eax,0 |
||
222 | jg .read_to_buffer |
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223 | mov edi,[cd_counter_block] |
||
224 | mov [edx+8],edi |
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225 | mov edi,[ebx] |
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226 | sub [edx+4],edi |
||
227 | pop ecx edi |
||
228 | mov ebx, [edx+4] |
||
89 | diamond | 229 | mov eax,ERROR_SUCCESS |
87 | mario79 | 230 | ret |
231 | |||
232 | |||
233 | mov [cd_current_pointer_of_input_2],CDDataBuf |
||
234 | push eax esi edi edx |
||
235 | .get_names_from_buffer_1: |
||
236 | call cd_get_name |
||
237 | jc .end_buffer |
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238 | inc dword [cd_counter_block] |
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239 | mov eax,[cd_counter_block] |
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240 | cmp [ebx],eax |
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241 | jae .get_names_from_buffer_1 |
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242 | test ecx, ecx |
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243 | jz .get_names_from_buffer_1 |
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244 | mov edi,[cd_counter_block] |
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245 | mov [edx+4],edi |
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246 | dec ecx |
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247 | mov esi,ebp |
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248 | mov edi,[cd_mem_location] |
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249 | add edi,40 |
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250 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
||
251 | jnz .unicode |
||
252 | ; jmp .unicode |
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253 | .ansi: |
||
254 | cmp [cd_counter_block],2 |
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255 | jbe .ansi_parent_directory |
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256 | cld |
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257 | lodsw |
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258 | xchg ah,al |
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259 | call uni2ansi_char |
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260 | cld |
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261 | stosb |
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262 | ; проверка конца файла |
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263 | mov al,[esi+1] |
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264 | cmp al,byte 3Bh ; сепаратор конца файла ';' |
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265 | je .cd_get_parameters_of_file_1 |
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266 | ; проверка для файлов не заканчивающихся сепаратором |
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267 | movzx eax,byte [ebp-33] |
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268 | add eax,ebp |
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269 | sub eax,34 |
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270 | cmp esi,eax |
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271 | je .cd_get_parameters_of_file_1 |
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272 | ; проверка конца папки |
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273 | movzx eax,byte [ebp-1] |
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274 | add eax,ebp |
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275 | cmp esi,eax |
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276 | jb .ansi |
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277 | .cd_get_parameters_of_file_1: |
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278 | mov [edi],byte 0 |
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279 | call cd_get_parameters_of_file |
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90 | mario79 | 280 | add [cd_mem_location],304 |
87 | mario79 | 281 | jmp .get_names_from_buffer_1 |
282 | |||
283 | |||
284 | cmp [cd_counter_block],2 |
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285 | je @f |
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286 | mov [edi],byte '.' |
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287 | inc edi |
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288 | jmp .cd_get_parameters_of_file_1 |
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289 | @@: |
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290 | mov [edi],word '..' |
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291 | add edi,2 |
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292 | jmp .cd_get_parameters_of_file_1 |
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293 | |||
294 | |||
295 | cmp [cd_counter_block],2 |
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296 | jbe .unicode_parent_directory |
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297 | cld |
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298 | movsw |
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299 | ; проверка конца файла |
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300 | mov ax,[esi] |
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301 | cmp ax,word 3B00h ; сепаратор конца файла ';' |
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302 | je .cd_get_parameters_of_file_2 |
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303 | ; проверка для файлов не заканчивающихся сепаратором |
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304 | movzx eax,byte [ebp-33] |
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305 | add eax,ebp |
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306 | sub eax,34 |
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307 | cmp esi,eax |
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308 | je .cd_get_parameters_of_file_2 |
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309 | ; проверка конца папки |
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310 | movzx eax,byte [ebp-1] |
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311 | add eax,ebp |
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312 | cmp esi,eax |
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313 | jb .unicode |
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314 | .cd_get_parameters_of_file_2: |
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315 | mov [edi],word 0 |
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316 | call cd_get_parameters_of_file |
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90 | mario79 | 317 | add [cd_mem_location],560 |
87 | mario79 | 318 | jmp .get_names_from_buffer_1 |
319 | |||
320 | |||
321 | cmp [cd_counter_block],2 |
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322 | je @f |
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323 | mov [edi],word 2E00h ; '.' |
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324 | add edi,2 |
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325 | jmp .cd_get_parameters_of_file_2 |
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326 | @@: |
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327 | mov [edi],dword 2E002E00h ; '..' |
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328 | add edi,4 |
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329 | jmp .cd_get_parameters_of_file_2 |
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330 | |||
331 | |||
90 | mario79 | 332 | pop edx edi esi eax |
333 | ret |
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334 | |||
335 | |||
336 | mov edi,[cd_mem_location] |
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87 | mario79 | 337 | cd_get_parameters_of_file_1: |
90 | mario79 | 338 | ; получаем атрибуты файла |
87 | mario79 | 339 | xor eax,eax |
340 | ; файл не архивировался |
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341 | inc al |
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342 | shl eax,1 |
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343 | ; это каталог? |
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344 | test [ebp-8],byte 2 |
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345 | jz .file |
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346 | inc al |
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347 | .file: |
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348 | ; метка тома не как в FAT, в этом виде отсутсвует |
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349 | ; файл не является системным |
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350 | shl eax,3 |
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351 | ; файл является скрытым? (атрибут существование) |
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352 | test [ebp-8],byte 1 |
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353 | jz .hidden |
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354 | inc al |
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355 | .hidden: |
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356 | shl eax,1 |
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357 | ; файл всегда только для чтения, так как это CD |
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358 | inc al |
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359 | mov [edi],eax |
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360 | ; получаем время для файла |
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361 | ;час |
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362 | movzx eax,byte [ebp-12] |
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363 | shl eax,8 |
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364 | ;минута |
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365 | mov al,[ebp-11] |
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366 | shl eax,8 |
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367 | ;секунда |
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368 | mov al,[ebp-10] |
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369 | ;время создания файла |
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370 | mov [edi+8],eax |
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371 | ;время последнего доступа |
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372 | mov [edi+16],eax |
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373 | ;время последней записи |
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374 | mov [edi+24],eax |
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375 | ; получаем дату для файла |
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376 | ;год |
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377 | movzx eax,byte [ebp-15] |
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378 | add eax,1900 |
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379 | shl eax,8 |
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380 | ;месяц |
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381 | mov al,[ebp-14] |
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382 | shl eax,8 |
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383 | ;день |
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384 | mov al,[ebp-13] |
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385 | ;дата создания файла |
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386 | mov [edi+12],eax |
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387 | ;время последнего доступа |
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388 | mov [edi+20],eax |
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389 | ;время последней записи |
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390 | mov [edi+28],eax |
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391 | ; получаем тип данных имени |
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392 | xor eax,eax |
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393 | test dword [ebx+4], 1 ; 0=ANSI, 1=UNICODE |
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394 | jnz .unicode_1 |
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395 | mov [edi+4],eax |
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396 | jmp @f |
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397 | .unicode_1: |
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398 | inc eax |
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399 | mov [edi+4],eax |
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400 | @@: |
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401 | ; получаем размер файла в байтах |
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402 | xor eax,eax |
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403 | mov [edi+32+4],eax |
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404 | mov eax,[ebp-23] |
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405 | mov [edi+32],eax |
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406 | ret |
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407 | |||
408 | |||
90 | mario79 | 409 | ; |
410 | ; fs_CdGetFileInfo - LFN variant for CD |
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411 | ; get file/directory attributes structure |
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412 | ; |
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413 | ;---------------------------------------------------------------- |
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414 | fs_CdGetFileInfo: |
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415 | cmp byte [esi], 0 |
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416 | jnz @f |
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417 | mov eax, 2 |
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418 | ret |
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419 | @@: |
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420 | push edi ebp |
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421 | call cd_find_lfn |
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422 | pushfd |
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423 | cmp [DevErrorCode], 0 |
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424 | jz @f |
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425 | popfd |
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426 | pop ebp edi |
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427 | mov eax, 11 |
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428 | ret |
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429 | @@: |
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430 | popfd |
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431 | jnc @f |
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432 | pop ebp edi |
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433 | mov eax, ERROR_FILE_NOT_FOUND |
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434 | ret |
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435 | @@: |
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436 | |||
437 | |||
438 | call cd_get_parameters_of_file_1 |
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439 | and dword [edi+4], 0 |
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440 | pop ebp |
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441 | pop ebp edi |
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442 | xor eax, eax |
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443 | ret |
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444 | |||
445 | |||
94 | mario79 | 446 | ; |
447 | ; fs_CdExecute - LFN variant for executing from CD |
||
448 | ; |
||
449 | ; esi points to hd filename (e.g. 'dir1/name') |
||
450 | ; ebp points to full filename (e.g. '/hd0/1/dir1/name') |
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451 | ; dword [ebx] = flags |
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452 | ; dword [ebx+4] = cmdline |
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453 | ; |
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454 | ; ret ebx,edx destroyed |
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455 | ; eax > 0 - PID, < 0 - error |
||
456 | ; |
||
457 | ;-------------------------------------------------------------- |
||
458 | fs_CdExecute: |
||
459 | mov edx, [ebx] |
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460 | mov ebx, [ebx+4] |
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461 | test ebx, ebx |
||
462 | jz @f |
||
463 | add ebx, std_application_base_address |
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464 | @@: |
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465 | |||
466 | |||
467 | ; |
||
468 | ; fs_CdExecute.flags - second entry |
||
469 | ; |
||
470 | ; esi points to floppy filename (kernel address) |
||
471 | ; ebp points to full filename |
||
472 | ; edx flags |
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473 | ; ebx cmdline (kernel address) |
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474 | ; |
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475 | ; ret eax > 0 - PID, < 0 - error |
||
476 | ; |
||
477 | ;-------------------------------------------------------------- |
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478 | |||
479 | |||
480 | cmp byte [esi], 0 |
||
481 | jnz @f |
||
482 | ; cannot execute root! |
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483 | mov eax, -ERROR_ACCESS_DENIED |
||
484 | ret |
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485 | @@: |
||
486 | push edi |
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487 | call cd_find_lfn |
||
488 | jnc .found |
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489 | pop edi |
||
490 | mov eax, -ERROR_FILE_NOT_FOUND |
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491 | cmp [DevErrorCode], 0 |
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492 | jz @f |
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493 | mov al, -11 |
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494 | @@: |
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495 | ret |
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496 | .found: |
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497 | mov edi,[cd_current_pointer_of_input] |
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498 | mov eax,[edi+2] |
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499 | push 0 |
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500 | push eax |
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501 | push dword [edi+10] ; size |
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502 | push .DoRead |
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503 | call fs_execute |
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504 | add esp, 16 |
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505 | pop edi |
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506 | ret |
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507 | |||
508 | |||
509 | ; read next block |
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510 | ; in: eax->parameters, edi->buffer |
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511 | ; out: eax = error code |
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512 | pushad |
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513 | cmp dword [eax], 0 ; file size |
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514 | jz .eof |
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515 | cmp [eax+8],dword 0 |
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516 | jne @f |
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517 | mov ecx,[eax+4] |
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518 | inc dword [eax+4] |
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519 | mov [CDSectorAddress],ecx |
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520 | mov [CDDataBuf_pointer],CDDataBuf ;edi |
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521 | call ReadCDWRetr |
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522 | cmp [DevErrorCode], 0 |
||
523 | jnz .err |
||
524 | @@: |
||
525 | push esi edi ecx |
||
526 | mov esi,512 |
||
527 | imul esi,[eax+8] |
||
528 | add esi,CDDataBuf |
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529 | mov ecx,512/4 |
||
530 | cld |
||
531 | rep movsd |
||
532 | pop ecx edi esi |
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533 | |||
534 | |||
535 | mov ecx, [eax] |
||
536 | sub ecx, 512 |
||
537 | jae @f |
||
538 | lea edi, [edi+ecx+512] |
||
539 | neg ecx |
||
540 | push eax |
||
541 | xor eax, eax |
||
542 | rep stosb |
||
543 | pop eax |
||
544 | @@: |
||
545 | mov [eax], ecx |
||
546 | mov edx, [eax+8] |
||
547 | inc edx |
||
548 | cmp edx, 4 ; 2048/512=4 |
||
549 | jb @f |
||
550 | xor edx, edx |
||
551 | @@: |
||
552 | mov [eax+8], edx |
||
553 | popad |
||
554 | xor eax, eax |
||
555 | ret |
||
556 | .eof: |
||
557 | popad |
||
558 | mov eax, 6 |
||
559 | ret |
||
560 | .err: |
||
561 | popad |
||
562 | mov eax, 11 |
||
563 | ret |
||
564 | |||
565 | |||
87 | mario79 | 566 | ; in: esi->name |
567 | ; out: CF=1 - file not found |
||
568 | ; else CF=0 and [cd_current_pointer_of_input] direntry |
||
569 | push eax esi |
||
570 | ; 16 сектор начало набора дескрипторов томов |
||
571 | mov [CDSectorAddress],dword 15 |
||
572 | .start: |
||
573 | inc dword [CDSectorAddress] |
||
574 | mov [CDDataBuf_pointer],CDDataBuf |
||
575 | call ReadCDWRetr |
||
576 | cmp [DevErrorCode],0 |
||
577 | jne .access_denied |
||
578 | ; проверка на вшивость |
||
579 | cmp [CDDataBuf+1],dword 'CD00' |
||
580 | jne .access_denied |
||
581 | cmp [CDDataBuf+5],byte '1' |
||
582 | jne .access_denied |
||
583 | ; сектор является терминатором набор дескрипторов томов? |
||
584 | cmp [CDDataBuf],byte 0xff |
||
585 | je .access_denied |
||
586 | ; сектор является дополнительным и улучшенным дескриптором тома? |
||
587 | cmp [CDDataBuf],byte 0x2 |
||
588 | jne .start |
||
589 | ; сектор является дополнительным дескриптором тома? |
||
590 | cmp [CDDataBuf+6],byte 0x1 |
||
591 | jne .start |
||
592 | ; параметры root директрории |
||
593 | mov eax,[CDDataBuf+0x9c+2] ; начало root директрории |
||
594 | mov [CDSectorAddress],eax |
||
595 | mov eax,[CDDataBuf+0x9c+10] ; размер root директрории |
||
596 | cmp byte [esi], 0 |
||
597 | jnz @f |
||
598 | mov [cd_current_pointer_of_input],CDDataBuf+0x9c |
||
599 | jmp .done |
||
600 | @@: |
||
601 | ; начинаем поиск |
||
602 | .mainloop: |
||
603 | dec dword [CDSectorAddress] |
||
604 | .read_to_buffer: |
||
605 | inc dword [CDSectorAddress] |
||
606 | mov [CDDataBuf_pointer],CDDataBuf |
||
607 | call ReadCDWRetr ; читаем сектор директории |
||
608 | cmp [DevErrorCode],0 |
||
609 | jne .access_denied |
||
610 | call cd_find_name_in_buffer |
||
611 | jnc .found |
||
612 | sub eax,2048 |
||
613 | ; директория закончилась? |
||
614 | cmp eax,0 |
||
615 | jg .read_to_buffer |
||
616 | ; нет искомого элемента цепочки |
||
617 | .access_denied: |
||
618 | pop esi eax |
||
619 | stc |
||
620 | ret |
||
621 | ; искомый элемент цепочки найден |
||
622 | .found: |
||
623 | ; конец пути файла |
||
624 | cmp byte [esi-1], 0 |
||
94 | mario79 | 625 | jz .done |
87 | mario79 | 626 | mov eax,[cd_current_pointer_of_input] |
627 | add eax,2 |
||
628 | mov eax,[eax] |
||
629 | mov [CDSectorAddress],eax ; начало директории |
||
630 | add eax,8 |
||
631 | mov eax,[eax] ; размер директории |
||
632 | jmp .mainloop |
||
633 | ; указатель файла найден |
||
634 | .done: |
||
635 | pop esi eax |
||
636 | clc |
||
637 | ret |
||
638 | |||
639 | |||
640 | mov [cd_current_pointer_of_input_2],CDDataBuf |
||
641 | .start: |
||
642 | call cd_get_name |
||
643 | jc .not_found |
||
644 | call cd_compare_name |
||
645 | jc .start |
||
646 | .found: |
||
647 | clc |
||
648 | ret |
||
649 | .not_found: |
||
650 | stc |
||
651 | ret |
||
652 | |||
653 | |||
654 | push eax |
||
655 | mov ebp,[cd_current_pointer_of_input_2] |
||
656 | mov [cd_current_pointer_of_input],ebp |
||
657 | mov eax,[ebp] |
||
658 | cmp eax,0 ; входы закончились? |
||
659 | je .next_sector |
||
660 | cmp ebp,CDDataBuf+2048 ; буфер закончился? |
||
661 | jae .next_sector |
||
662 | movzx eax, byte [ebp] |
||
663 | add [cd_current_pointer_of_input_2],eax ; следующий вход каталога |
||
664 | add ebp,33 ; указатель установлен на начало имени |
||
665 | pop eax |
||
666 | clc |
||
667 | ret |
||
668 | .next_sector: |
||
669 | pop eax |
||
670 | stc |
||
671 | ret |
||
672 | |||
673 | |||
674 | ; compares ASCIIZ-names, case-insensitive (cp866 encoding) |
||
675 | ; in: esi->name, ebp->name |
||
676 | ; out: if names match: ZF=1 and esi->next component of name |
||
677 | ; else: ZF=0, esi is not changed |
||
678 | ; destroys eax |
||
679 | push esi eax edi |
||
680 | mov edi,ebp |
||
681 | .loop: |
||
682 | cld |
||
683 | lodsb |
||
684 | push ax |
||
685 | call char_toupper |
||
686 | call ansi2uni_char |
||
687 | xchg ah,al |
||
688 | cld |
||
689 | scasw |
||
690 | pop ax |
||
691 | je .coincides |
||
692 | call char_todown |
||
693 | call ansi2uni_char |
||
694 | xchg ah,al |
||
695 | cld |
||
696 | sub edi,2 |
||
697 | scasw |
||
698 | jne .name_not_coincide |
||
699 | .coincides: |
||
700 | cmp [esi],byte '/' ; разделитель пути, конец имени текущего элемента |
||
701 | je .done |
||
702 | cmp [esi],byte 0 ; разделитель пути, конец имени текущего элемента |
||
703 | je .done |
||
704 | jmp .loop |
||
705 | .name_not_coincide: |
||
706 | pop edi eax esi |
||
707 | stc |
||
708 | ret |
||
709 | .done: |
||
710 | ; проверка конца файла |
||
711 | cmp [edi],word 3B00h ; сепаратор конца файла ';' |
||
712 | je .done_1 |
||
713 | ; проверка для файлов не заканчивающихся сепаратором |
||
714 | movzx eax,byte [ebp-33] |
||
715 | add eax,ebp |
||
716 | sub eax,34 |
||
717 | cmp edi,eax |
||
718 | je .done_1 |
||
719 | ; проверка конца папки |
||
720 | movzx eax,byte [ebp-1] |
||
721 | add eax,ebp |
||
722 | cmp edi,eax |
||
723 | jne .name_not_coincide |
||
724 | .done_1: |
||
725 | pop edi eax |
||
726 | add esp,4 |
||
727 | inc esi |
||
728 | clc |
||
729 | ret |
||
730 | |||
731 | |||
732 | ; convert character to uppercase, using cp866 encoding |
||
733 | ; in: al=symbol |
||
734 | ; out: al=converted symbol |
||
735 | cmp al, 'A' |
||
736 | jb .ret |
||
737 | cmp al, 'Z' |
||
738 | jbe .az |
||
739 | cmp al, 'Ђ' |
||
740 | jb .ret |
||
741 | cmp al, 'ђ' |
||
742 | jb .rus1 |
||
743 | cmp al, 'џ' |
||
744 | ja .ret |
||
745 | ; 0x90-0x9F -> 0xE0-0xEF |
||
746 | add al, 'а'-'ђ' |
||
747 | .ret: |
||
748 | ret |
||
749 | .rus1: |
||
750 | ; 0x80-0x8F -> 0xA0-0xAF |
||
751 | .az: |
||
752 | add al, 0x20 |
||
753 | ret |
||
754 | |||
755 | |||
756 | ; convert UNICODE character in al to ANSI character in ax, using cp866 encoding |
||
757 | ; in: ax=UNICODE character |
||
758 | ; out: al=converted ANSI character |
||
759 | cmp ax, 0x80 |
||
760 | jb .ascii |
||
761 | cmp ax, 0x401 |
||
762 | jz .yo1 |
||
763 | cmp ax, 0x451 |
||
764 | jz .yo2 |
||
765 | cmp ax, 0x410 |
||
766 | jb .unk |
||
767 | cmp ax, 0x440 |
||
768 | jb .rus1 |
||
769 | cmp ax, 0x450 |
||
770 | jb .rus2 |
||
771 | .unk: |
||
772 | mov al, '_' |
||
773 | jmp .doit |
||
774 | .yo1: |
||
775 | mov al, 'р' |
||
776 | jmp .doit |
||
777 | .yo2: |
||
778 | mov al, 'с' |
||
779 | jmp .doit |
||
780 | .rus1: |
||
781 | ; 0x410-0x43F -> 0x80-0xAF |
||
782 | add al, 0x70 |
||
783 | jmp .doit |
||
784 | .rus2: |
||
785 | ; 0x440-0x44F -> 0xE0-0xEF |
||
786 | add al, 0xA0 |
||
787 | .ascii: |
||
788 | .doit: |
||
789 | ret>> |
||
790 |